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We perform a study on the evolution of helical quantum turbulence at different temperatures by solving numerically the Gross-Pitaevskii and the Stochastic Ginzburg-Landau equations, using up to $4096^3$ grid points with a pseudospectral…

Fluid Dynamics · Physics 2018-09-26 P. Clark di Leoni , P. D. Mininni , M. -E. Brachet

We construct colloidal ``sticky'' rods from the semi-flexible filamentous fd virus and temperature-sensitive polymers poly(N-isopropylacrylamide) (PNIPAM). The phase diagram of fd-PNIPAM system becomes independent of ionic strength at high…

Soft Condensed Matter · Physics 2008-11-06 F. Huang , R. Rotstein , K. E. Kasza , N. T. Flynn , S. Fraden

We propose a novel method for measuring linear and non-linear viscoelastic properties of a liquid by the oscillatory motion of an immersed rotating body in a vessel. The shape of a rotating object is general and we tested four different…

Fluid Dynamics · Physics 2025-05-19 Hye Jin Ahn , Wook Ryol Hwang

The diverse chemical and physical reactions encountered during cooking connect us to science every day. Here, we theoretically and experimentally investigate the swelling and softening of pasta due to liquid imbibition, as well as the…

Popular Physics · Physics 2022-04-20 Jonghyun Hwang , Jonghyun Ha , Ryan Siu , Yun Seong Kim , Sameh Tawfick

The shear modulus of solid 4He below 200 mK exhibits an unusual increase, the characteristics of which show remarkable similarities to those of the period reduction in torsional oscillator experiments. We systematically studied the drive…

Other Condensed Matter · Physics 2013-01-16 D. Y. Kim , E. S. H. Kang , E. Kim , H. C. Kim

In this study, we performed highly resolved large-eddy simulations (LES) to investigate the influence of variable properties on the forced turbulent convection in a channel. The constant heat flux boundary condition permits wall temperature…

Fluid Dynamics · Physics 2023-01-11 Himani Garg , Lei Wang

The complex shear modulus of solid $^4$He exhibits an anomaly in the same temperature region where torsion oscillators show a change in period. We propose that the observed stiffening of the shear modulus with decreasing temperature can be…

Statistical Mechanics · Physics 2012-12-06 Jung-Jung Su , Matthias J. Graf , Alexander V. Balatsky

We consider gelation of colloidal particles in suspension after cessation of shear flow. Particle aggregation is driven by a temperature-tunable attractive potential which controls the growth of clusters under isothermal conditions. A…

Soft Condensed Matter · Physics 2014-02-03 Ajay Singh Negi , Carissa G. Redmon , Subramanian Ramakrishnan , Chinedum O. Osuji

We compute the shear modulus of structural glasses from a first principle approach based on the cloned liquid theory. We find that the intra-state shear-modulus, which corresponds to the plateau modulus measured in linear visco-elastic…

Soft Condensed Matter · Physics 2015-05-18 Hajime Yoshino , Marc Mezard

We investigated the viscoelastic properties of colloid-polymer mixtures at intermediate colloid volume fraction and varying polymer concentrations, thereby tuning the attractive interactions. Within the examined range of polymer…

Soft Condensed Matter · Physics 2008-12-05 M. Laurati , G. Petekidis , N. Koumakis , F. Cardinaux , A. B. Schofield , J. M. Brader , M. Fuchs , S. U. Egelhaaf

Based on the Monte Carlo kinetic method, we investigated the formation mechanisms of periodical modulations arising along the length of one-dimensional structures. The evolution of initially cylindrical nanowires/slabs at temperatures lower…

Mesoscale and Nanoscale Physics · Physics 2021-02-17 Vyacheslav N. Gorshkov , Vladimir V. Tereshchuk , Pooya Sareh

Controlled crystallization, melting and vitrification are important fundamental processes in nature and technology. However, the microscopic details of these fundamental phenomena still lack understanding, in particular how the cooling rate…

Soft Condensed Matter · Physics 2024-07-08 M. P. M. Schelling , T. W. J. Verouden , T. C. M. Stevens , J. -M. Meijer

One of the major barriers in adapting the existing EB-PBF process parameters to a new powder material system is controlling the preheating conditions such that every layer of powder results in enough partial sintering to create a coherent…

Materials Science · Physics 2021-08-02 Gitanjali Shanbhag , Mihaela Vlasea

By the combination of optical tweezer manipulation and digital video microscopy, the flexural rigidity of single glycolipid "nano" tubes has been measured below the transition temperature at which the lipid tubules are transformed into…

Soft Condensed Matter · Physics 2014-05-22 T. Fujima , H. Frusawa , H. Minamikawa , K. Ito , T. Shimizu

Dynamics of a polymer chain in solution gets significantly affected by the temperature and the frictional forces arising due to solvent viscosity. Here, using an explicit solvent framework for polymer simulation with the liberty to tune the…

Soft Condensed Matter · Physics 2024-09-11 Suman Majumder , Henrik Christiansen , Wolfhard Janke

The dynamics of a folded protein is studied in water and glycerol at a series of temperatures below and above their respective dynamical transition. The system is modeled in two distinct states whereby the protein is decoupled from the bulk…

Soft Condensed Matter · Physics 2008-09-23 C. Atilgan , A. O. Aykut , A. R. Atilgan

Liquids realize a highly complex state of matter in which strong competing kinetic and interaction effects come to life. As such, liquids are more challenging to understand than either gases or solids generally. In weakly interacting gases,…

Soft Condensed Matter · Physics 2022-06-29 Jing Xue , Flavio S. Nogueira , K. F. Kelton , Zohar Nussinov

Within the framework of Lorentz model for description of viscoelastic medium the influence of deformational defect of the shear modulus is studied on melting of ultrathin lubricant film confined between the atomically flat solid surfaces.…

Statistical Mechanics · Physics 2009-11-11 A. V. Khomenko , I. A. Lyashenko

Texture is an important attribute in the quality assessment of processed food products. Youngs modulus is an indirect measure of texture. During thermal treatment of hygroscopic foods, parameters such as moisture content significantly…

Soft Condensed Matter · Physics 2018-10-16 Ankita Sinha , Atul Bhargav

Convection of an internally heated fluid, confined between top and bottom plates of equal temperature, is studied by direct numerical simulation in two and three dimensions. The unstably stratified upper region drives convection that…

Fluid Dynamics · Physics 2016-06-30 David Goluskin , Erwin P. van der Poel